Vulnerability CVE-2022-0433
Published: 2022-03-10

Description:
A NULL pointer dereference flaw was found in the Linux kernel's BPF subsystem in the way a user triggers the map_get_next_key function of the BPF bloom filter. This flaw allows a local user to crash the system. This flaw affects Linux kernel versions prior to 5.17-rc1.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 
Fedoraproject -> Fedora 

 References:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=3ccdcee28415c4226de05438b4d89eb5514edf73
https://lore.kernel.org/bpf/1640776802-22421-1-git-send-email-tcs.kernel@gmail.com/t/
https://bugzilla.redhat.com/show_bug.cgi?id=2048259
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